import {
  request
} from "../../request/index"
Page({
  data: {
    tabs: [{
        id: 0,
        value: '综合',
        isActive: true
      },
      {
        id: 1,
        value: '销量',
        isActive: false
      },
      {
        id: 2,
        value: '价格',
        isActive: false
      },
    ],
    goodsList: [],
    numGoodsList: [],
    priceList: []
  },
  //接口耀得参数
  QueryParams: {
    query: "",
    cid: "",
    pagenum: 1,
    pagesize: 10
  },
  totalPages: 1,
  onLoad: function (options) {
    //options-----能够获取上一个页面的属性和属性值;
    //可以获取跳转过来时候传递的参数;
    this.QueryParams.cid = options.cid || "";
    this.QueryParams.query = options.query || ""
    this.getGoodsList()
  },
  async getGoodsList() {
    const res = await request({
      url: '/goods/search',
      data: this.QueryParams
    })
    // console.log(res)
    //获取总条数;
    const total = res.total;
    this.totalPages = Math.ceil(total / this.QueryParams);

    this.setData({
      goodsList: [...this.data.goodsList, ...res.goods],
      numGoodsList:[...this.data.goodsList, ...res.goods],
      priceList: [...this.data.goodsList, ...res.goods]
    })
    wx.stopPullDownRefresh()
  },
  handleTabsItemChange(e) {
    const { index } = e.detail;
    let { tabs } = this.data;
    tabs.forEach((v, i) => {
      i === index ? v.isActive = true : v.isActive = false
    })
    if (index === 1) {
      let numGoodsList = this.data.goodsList.sort((a, b) => {
        return a.goods_id - b.goods_id
      })
      this.setData({
        numGoodsList
      })
    }
    if (index === 2) {
      let priceList = this.data.goodsList.sort((a, b) => {
        return a.goods_price - b.goods_price
      })
      this.setData({
        priceList
      })
    }
    this.setData({
      tabs
    })
  },
  //页面上滑滚动条触底事件;
  onReachBottom() {
    if (this.QueryParams.pagenum >= this.totalPages) {
      wx.showToast({
        title: '没有下一页数据'
      });
    } else {
      this.QueryParams.pagenum++;
      this.getGoodsList()
    }
  },
  onPullDownRefresh() {
    //重置数组
    this.setData({
      goodsList: []
    })
    //重置页码
    this.QueryParams.pagenum = 1;
    this.getGoodsList()
  }
})